JP4201769B2 - Optical disk device - Google Patents

Description

  The present invention relates to an optical disk apparatus in which a disk is transported to a storage position by a transport roller and the presence or absence of the disk is determined.

The optical disk apparatus may be required to have high operational stability such as downsizing, quietness, and disk detection, for example, for in-vehicle use due to diversification of installation locations.
This type of optical disc apparatus 100 will be described with reference to FIGS. In FIG. 12, reference numeral 101 denotes a box-shaped housing, and a disk insertion slot is formed in the front plate 101A of the housing 101. Reference numeral 102 denotes a disk loading roller disposed in the vicinity of the disk insertion opening in the housing 101. The roller 102 is rotated by a roller driving mechanism (not shown) to insert and eject the disk 103. Reference numeral 104 denotes a semi-circular tray that holds the disk 103, and a plurality of trays 104 are stacked on the corner side of the back plate 101B and the right side plate 101C in the housing 101 (see, for example, Patent Document 1). ).

  Metal plates 105 are respectively disposed on the uppermost surface side and the lowermost surface side of the plurality of trays 104, and holes are formed in the tray 104 and the metal plate 105 at three locations. Since the three tray guide shafts whose both ends are fixed to the top plate and the bottom plate of the housing 101 are inserted into the holes of the tray 104 and the metal plate 105, the plurality of trays 104 and the metal plates 105 are the above three. It is possible to move up and down by being guided by the tray guide shaft. A lever 106 is rotatably supported in the housing 101, and a roller 107 is held at the tip of the lever 106.

  The lever 106 is urged clockwise (FIG. 12) by a spring (not shown). The disc 103 inserted from the disc insertion opening formed at the center of the front plate 101A of the housing 101 is transferred into the housing 101 by the roller 102 toward the back plate 101B. During this transfer, the roller 107 at the tip of the lever 106 contacts the outer peripheral surface of the disk 103, so that the disk 103 is turned in the direction of the tray 104 and stored in the tray 104.

  In this optical disk apparatus 100, the disk 103 moved in the center direction of the housing 101 pushes the roller 107 at the tip of the lever 106 as shown in FIG. 13, and the lever 106 is rotated counterclockwise in FIG. Turn to. In FIG. 13, 106A is a protruding piece integrally formed on the upper surface of the lever 106, and 109 is a photocoupler in which a light emitting element and a light receiving element are arranged to face each other with the protruding piece 106A interposed therebetween.

When the motor that operates the elevator mechanism that raises and lowers the plurality of trays 104 rotates, the rotational driving force of the motor is transmitted to the cam gear 110 shown in FIGS. 12 and 14 via the gear reduction mechanism, and the cam gear 110 rotates. . When the roller 107 is pushed by the disk 103 pushed in the center direction of the housing 101 by the projecting piece 111 of the cam gear 110 and the lever 106 rotates counterclockwise, the projecting piece 106A comes off from the photocoupler 109, and the photocoupler 109 Goes from off to on. As described above, in the process of lowering the plurality of trays 104 by the tray elevator mechanism, the protruding pieces 111 of the cam gear 110 are sequentially inserted between the trays, and whether or not the lever 106 is rotated at the insertion timing is determined by the photocoupler 109. The presence / absence of the disk 103 on each tray 104 was detected. In FIG. 14, 110 </ b> A denotes a spiral cam groove, and 110 </ b> B and 110 </ b> C denote mountain portions of the cam gear 110.
Japanese Unexamined Patent Publication No. 2000-40290 (FIGS. 1, 8, and 10)

  However, in the conventional optical disk apparatus, generally, when determining the presence or absence of a disk, the disk is moved by a push lever, and the disk presses another detection lever to identify ON / OFF of the photocoupler. Was detected. For this reason, the push-out lever that moves the disc is different from the detection lever that detects the presence / absence of the disc, so that if the operation error of each member overlaps, the detection accuracy decreases, and it is impossible to accurately detect the presence / absence of the disc. there were. In addition, since only a part of the outer periphery of the disk is pushed by the pushing lever and the moved disk is brought into contact with other detection levers for detection, the judgment accuracy depends on the accuracy of the mechanical structure, or the disk needs to be pushed out. For this reason, in the case of a disc whose outer diameter is different from that of a standard one or is not a perfect circle, a malfunction is likely to occur in pressing and detection of the disc, and there is a possibility of erroneous detection.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide an optical disc apparatus capable of accurately detecting the presence / absence of a disc.

An optical disk apparatus according to the present invention includes a main body having a disk insertion / removal opening, a conveying roller for conveying the disk between the disk insertion / removal opening and a disk storage position of the main body, and a base end inside the main body by a support shaft. a swing lever disk reaches the switch has been fixed but are rotatably supported, the detection lever position relative to the swing lever base end to the support shaft is rotatably supported is provided to be changed And a drive part that drives the swing lever and the detection lever, and the drive part causes the swing lever and the detection lever to swing simultaneously around the support shaft, thereby leading the tip of the detection lever. Has a configuration in which the disk arrival switch is pressed in contact with the outer periphery of the disk stored in the disk storage position .

With this configuration, a push lever and a detection lever are provided separately as in the conventional configuration, and it is not necessary to drive and control the push lever at the sensor timing that changes during disk transport, and swings around the same support shaft is the detection performed by the change in the relative position between the swing lever and the detection lever to be, the error is not generated by the detection operation that occurs by cooperative operation of the plurality of members.

Further, in the optical disk apparatus of the present invention, the swing lever and the detection lever are in an initial position where the detection unit and the disk arrival switch are not in contact with the disk stored in the disk storage position by the drive unit, The outer periphery of the stored disk and the tip of the detection lever come into contact with each other and swing between the position where the disk arrival switch is pressed .
With this configuration , the storage disk can be moved up and down at the initial position, and it is possible to detect the presence or absence of disks stacked in the disk lifting direction.

As is apparent from the above description, according to the present invention, the presence / absence detection of the disk at the disk storage position can be accurately performed with a simple configuration.

Hereinafter, an optical disk device according to an embodiment of the present invention will be described with reference to the drawings.
A first embodiment of the present invention is shown in FIG.
FIG. 1 shows an overall perspective view of a car audio device 1 incorporating an optical disk device 10 according to an embodiment of the present invention. The car audio device 1 includes a radio 2, a cassette tape player 3 and the like in addition to the optical disc device 10, and a front panel 4 includes a display unit 4a shared by all functions and a power / volume knob 4b. In addition, a disk insertion / removal port 11 having a lid 11a that can be freely opened and closed in the optical disk device 10, a tuning knob 2a for radio, a cassette tape insertion port 3a, and the like are provided. In addition, a control unit (not shown) for controlling the radio 2, the cassette tape reproducing device 3, the optical disk device 10 and the like is provided inside.

FIG. 2 shows a cross-sectional view of the optical disc apparatus 10 according to the embodiment of the present invention built in the car audio apparatus 1 at the position II-II in FIG.
As shown in FIG. 2, the optical disk apparatus 10 has a rectangular box-shaped main body 13 and a disk insertion / removal port 11 in the vicinity of the main body 13 in contact with the inserted disk to transmit the power to the disk 12. A roller member 14 that constitutes a transport roller for transporting and inserting (loading) and ejecting (ejecting) the disk 12 and a power source (not shown) for rotating the roller member 14 are provided. The conveying means for loading and ejecting includes a roller member 14 and an upper roller member (not shown) disposed in the direction perpendicular to the paper surface of FIG. The upper roller member rotates together with the roller member 14 when the disk 12 is loaded and ejected.

  The roller member 14 is restricted from moving in the vertical direction (direction A or direction B in the drawing) with respect to the main body 13. Further, the upper roller member (not shown) is movable in the vertical direction (perpendicular to the plane of FIG. 2) with respect to the main body 13, and the upper roller member is moved by the action of an elastic member (not shown) that urges the upper roller member. Is biased downward (in a direction approaching the roller member 14).

  Therefore, when the disk 12 is inserted into the apparatus, an upper roller member (not shown) moves upward with respect to the main body 13 (a direction away from the roller member 14), and the disk 12 is moved between the roller member 14 and the upper roller member. Sandwiched between. The movable amount to the upper roller member is more than the moving amount when a plurality of discs (for example, two) are inserted, and even when a plurality of discs are inserted into the apparatus, the roller member 14 and the upper roller member are configured to be able to load and eject by pressing the disk in a rotatable manner.

  Further, a push lever 15 is disposed near the disk insertion / removal port 11 of the main body 13 on the back side in the loading direction from the roller member 14. A vertical support shaft 17 is erected on the main body 13 on the surface of the disk 12 stored in the disk storage position Dp. The push lever 15 has a base end 15a rotatably supported by the support shaft 17, and a distal end 15b rotatable in the directions of arrows A and B in FIG. A helical spring 18 as an urging means is extrapolated to the support shaft 17, one end of the helical spring 18 is abutted against a spring hook 19 erected on the base 16, and the other end is a spring of the pushing lever 15. It abuts on the hanger 20. Thereby, the push lever 15 is urged in the direction of arrow A. The push lever 15 abuts against a stopper (not shown) provided upright on the main body 13, so that the rotation of the push lever 15 in a direction of the arrow A is restricted.

  The push lever 15 pushes the disk 12 being conveyed by the roller member 14 into the disk storage position Dp by the biasing force in the direction of arrow A by the spring 18. A storage completion switch 21 is disposed on the base 16 in the vicinity of the push lever 15, and the storage completion switch 21 has a contact 21a for switching between output signals Hi (OFF) and Lo (ON). The contact 21 a of the storage completion switch 21 operates by contacting the proximal end 15 a of the push lever 15 when the push lever 15 swings.

  That is, when the disk 12 is not stored in the disk storage position Dp shown in FIG. 2, the contact 21a is not pressed, and the output signal of the storage completion switch 21 is Hi (OFF). On the other hand, when the disk 12 is carried in by the roller member 14 and the push lever 15 is rotated in the direction of arrow B by the disk 12, the contact 21a is pressed by the base end 15a, and the output signal of the storage completion switch 21 is Lo (ON). ) Further, when the disk 12 is pushed in by the pushing lever 15 and is disposed at a predetermined position of the disk storage position Dp, the pushing lever 15 is rotated again in the direction of arrow A by the urging force of the spring 18 to the position shown in FIG. The output signal of the storage completion switch 21 is Hi (OFF).

  A roller 22 is rotatably provided at the tip 15b of the push lever 15 via a shaft 23. The roller 22 works to reduce contact friction between the push lever tip 15b and the disk 12.

FIG. 3 is an enlarged plan view of a swing lever and a detection lever provided on the back side of the disc insertion position in the disc storage position, and FIG. 4 is an enlarged view of the swing lever and the detection lever showing a state where no disc is present in the disc detection unit. A plan view is shown.
A support shaft 24 in a vertical direction is erected on the base 16 on the back side in the disk insertion direction of the disk storage position Dp on the surface of the disk 12 stored in the disk storage position Dp. A base end 25a of a swing lever 25 is rotatably supported on the support shaft 24, and a tip 25b of the swing lever 25 is swingable in the directions of arrows C and D in FIG. A disk arrival switch 26 with a contact 26a protruding is fixed on the upper surface of the swing lever tip 25b.

  A detection lever 27 is disposed on the upper surface of the swing lever 25, and a base end 27a of the detection lever 27 is rotatably supported on the support shaft 24. The detection lever 27 also has a tip 27b that can swing in the directions of arrows C and D in FIG. That is, the swing lever 25 and the detection lever 27 are supported coaxially by the support shaft 24. A contact portion 28 that contacts the outer periphery of the disk 12 is formed at the tip 27 b of the detection lever 27. A pressing step 29 is formed on the back of the detection lever 27. When the detection lever 27 is swung in the approaching direction to the disk arrival switch 26, the pressing step 29 presses the contact 26a. The detection lever 27 is preferably urged by an urging means (not shown) in the direction in which the tip 27b protrudes into the disk storage position Dp (the direction of arrow D in FIG. 3).

  The swing lever 25 and the detection lever 27 are swung in the directions of arrows C and D in FIG. 3 by a lever drive system (not shown). At the initial position shown in FIG. 3 driven by the lever drive system, there is no contact with the storage disk 12, and the storage disk 12 can be moved up and down. In this state, the detection lever 27 and the disk arrival switch 26 are not in contact with each other. That is, the output signal of the disk arrival switch 26 is Hi (OFF).

  As shown in FIG. 4, during the disk search operation, the swing lever 25 and the detection lever 27 are rotated in the direction of arrow D in FIG. 4 by a lever drive system (not shown). At this time, if the disk 12 is not in the disk storage position Dp, the detection lever 27 and the disk arrival switch 26 do not contact each other. That is, the relative position between the detection lever 27 and the disk arrival switch 26 is the same as the initial position, and the output signal of the disk arrival switch 26 remains Hi (OFF).

  On the other hand, during the disk search operation, the swing lever 25 and the detection lever 27 are rotated in the direction of arrow D in FIG. 3 by a lever drive system (not shown), and when the disk 12 is in the disk storage position Dp, The contact portion 28 of the detection lever 27 contacts. As a result, the relative position of the detection lever 27 and the swing lever 25 changes, the contact 26a is pressed by the pressing step 29 of the detection lever 27, and the output signal of the disk arrival switch 26 becomes Lo (ON). . By these operations, the disk 12 can be detected.

  In the disk insertion operation, when the disk arrival switch 26 detects that the disk 12 being conveyed has reached the vicinity of the disk storage position Dp, the detection lever 27 and the swing lever 25 are retracted from the disk storage position Dp. Operation control is performed. That is, the disk arrival switch 26 is pressed by the detection lever 27 that is swung by the tip contacting the outer periphery of the disk 12, the lever drive system is driven in response to this operation signal, and the swing lever 25 is further moved. It is swung in the direction of retreating from the disk storage position Dp. As a result, the disk 12 being transported is stored at a low speed while being in contact with the detecting lever 27 being retracted, and the collision noise can be reduced.

  Further, in the optical disc apparatus 10, when the disc arrival switch 26 detects that the disc arrival switch 26 has come into contact with the disc 12 being accommodated, an operation control for rotating the roller member 14 is performed.

  In addition, the optical disc apparatus 10 includes a disc IN switch, an extrusion completion switch, an origin switch, and a lever drive system (not shown). The disk IN switch detects that the disk 12 has been inserted into the main body 13 from the disk insertion / removal port 11. The push-out completion switch is a switch for detecting the state of the swing lever 25 and the detection lever 27, and detects the push-out completion position of the swing lever 25 and the detection lever 27. That is, it is possible to detect a disc insertion waiting state or a disc ejection completion state. The origin switch is a switch for detecting the state of the swing lever 25 and the detection lever 27, and detects the retreat completion position (origin position) of the swing lever 25 and the detection lever 27. As a result, the disc loading completion state or the disc ejection start state can be detected. As described above, the lever drive system enables the swing lever 25 and the detection lever 27 to move to the protruding and retracted positions with respect to the disk storage position Dp.

  Further, the optical disc apparatus 10 includes a spindle motor (not shown) for rotating the disc 12, an optical pickup (not shown) for recording and reproducing information on the disc 12, and a traverse motor (not shown) for driving the optical pickup in the inner and outer peripheral directions of the disc 12. It has.

Next, the operation of the optical disc apparatus 10 having such a configuration will be described.
FIG. 5 is a plan view of the optical disc apparatus main body showing a state in which the inserted disc is detected by the storage completion switch, and FIG. 6 shows a timing chart at the time of disc loading. The disk device of the present embodiment performs playback or recording by inserting and ejecting a 12 cm disk, but an 8 cm disk can also be handled. When reproducing or recording an 8 cm disc, an adapter that holds the 8 cm disc in the center is used. Since the adapter holding the 8 cm disc is handled in the same manner as the 12 cm disc 12, the description thereof is omitted.

(1) Loading operation of the disk 12 When the disk 12 is inserted into the disk insertion / removal port 11 of the main body 13 provided in the optical disk apparatus 10 by the user, as shown in FIG. Switching from (OFF) to Lo (ON) detects that the disk 12 has been inserted into the apparatus. Thereby, the disk device 10 starts the operation of the power source, and starts the rotation of the roller member 14, that is, loading.

  As shown in FIG. 5, when the auto-loading of the disc 12 is continued and the disc 12 further advances, the push lever 15 is rotated in the direction of the arrow B by the disc 12, and the contact 21a is pressed by the base end 15a to complete the storage. The output signal of the switch 21 becomes Lo (ON).

  FIG. 7 is a plan view of the main body of the optical disk apparatus showing a state where the swing lever and the detection lever are started to be retracted when the disk is detected by the disk arrival SW. FIG. 8 is a plan view of the swing lever and the detection lever after the disk is completely stored. A plan view of the main body of the optical disk device showing a state where the evacuation is completed is shown.

  As shown in FIG. 6, the swing lever 25 and the detection lever 27 protrude from the disk storage position Dp. This protruding arrangement is performed by a lever drive system. When the disk 12 is further conveyed in the loading direction, the outer periphery of the disk 12 comes into contact with the contact portion 28 of the detection lever 27 that is disposed so as to protrude into the disk storage position Dp. As a result, the relative position of the detection lever 27 and the swing lever 25 changes, and the contact 26a is pressed by the pressing step 29 of the detection lever 27. As shown in FIG. Becomes Lo (ON). That is, the disk 12 is detected by the disk arrival switch 26.

  The optical disk apparatus 10 drives the lever drive system when the detection signal of the disk 12 from the disk arrival switch 26 is input. The lever drive system rotates the swing lever 25 and the detection lever 27 in the loading direction (arrow C direction in FIG. 7), and starts driving the swing lever 25 and the detection lever 27 to the retracted position. At this time, the driving speed of the lever driving system is controlled slightly slower than the conveying speed of the roller member 14. Therefore, the disk 12 is loaded while being received while the detection lever 27 is in contact with the outer periphery. At this time, the disk 12 is loaded while being in contact with the three members of the roller member 14, the push lever 15 and the detection lever 27.

  As shown in FIG. 8, when the disk 12 is further transported in the loading direction, the output of the storage completion switch 21 changes to Hi (OFF) (see FIG. 6). In this state, the roller member 14 continues to rotate in the loading direction. When the retracting operation of the swing lever 25 and the detection lever 27 is maintained by the lever drive system, the push lever 15 pushes the disk 12 into the disk storage position Dp. As a result, the pushing lever 15 comes into contact with a stopper (not shown), so that the pushing to the disk 12 by the pushing lever 15 is released, the pushing lever 15 stops at the initial position, and the storage of the disk 12 is completed.

  Further, when the lever drive system continues the retracting operation of the swing lever 25 and the detection lever 27, as shown in FIG. 8, the detection lever 27 moves away from the outer periphery of the disk 12, and the output of the disk arrival switch 26 becomes Hi (OFF). Change.

  When the lever drive system is further rotated in the loading direction, the output of the origin switch changes to Hi (OFF). As a result, the optical disc apparatus 10 stops the lever drive system, and completes the loading and retraction of the swing lever 25 and the detection lever 27.

(2) Contact monitoring between the swing lever 25, the detection lever 27 and the disk 12 In the timing chart shown in FIG. 6, after the disk arrival switch 26 becomes Lo (ON), the storage completion switch 21 is During Lo (ON) (the shaded portion in the timing chart), it is monitored that the output of the disk arrival switch 26 is Lo (ON). When the disk arrival switch 26 becomes Hi (OFF), the operation of the lever drive system is temporarily stopped, and when the output of the disk arrival switch 26 becomes Lo (ON) again, the operation of the lever drive system is started. To do.

  Next, the disk 12 is transported to the recording / reproducing position by a mechanism not shown and held on the spindle motor. By this operation, the loading operation of the disk 12 is completed, and the disk device is ready for recording and reproduction of the disk 12.

(3) Ejecting operation of the disc 12 FIG. 9 is a timing chart at the time of disc ejection, FIG. 10 is a plan view of the optical disc apparatus main body showing the state of the disc in the disc detecting unit, and FIG. An arrow view is shown.
First, the holding of the disk 12 on the spindle motor is released by a mechanism not shown, and the ejecting operation of the disk 12 is started. The disc 12 is conveyed in the eject direction by a mechanism not shown.

  As shown in FIGS. 10 and 11, when the lever drive system is rotated in the eject direction (arrow D direction in FIG. 10), the disk 12 comes into contact with the push-in lever 15 due to the contact of the detection lever 27 by the lever drive system, The output of the disk arrival switch 26 changes to Lo (0N) (see FIG. 9). In response to this signal, the roller member 14 is rotated in the eject direction (see FIG. 9).

  The roller member 14 and the upper roller member sandwich the disk 12 and convey it in the ejection direction. Further, when the lever drive system is rotated in the eject direction, the output of an extrusion completion switch (not shown) is changed, the lever drive system is stopped, and the disk 12 is transported in the eject direction by the roller member 14 and the upper roller member. At this time, an ejection completion switch (not shown) detects that the disk 12 has been transported to the ejection position. Upon receiving this signal, the optical disc apparatus 10 stops the roller member 14 and completes the ejection. In this way, at the time of ejection, the rotation start of the roller member 14 is controlled by the output of the disk arrival switch 26, so that the motor rotation time in the no-load state can be shortened and the motor noise can be reduced.

  According to the optical disk apparatus 10 of the embodiment of the present invention, the base end is rotatably supported inside the main body by the support shaft 24 and the disk arrival switch 26 is fixed, and the support shaft 24 has the base end. And a detection lever 27 for operating the disk arrival switch 26 with its tip contacting the outer periphery of the disk stored in the disk storage position. The swing lever 25 and the same support shaft 24 as a fulcrum Since the detection lever 27 is rotatably supported and the disk arrival switch 26 is operated by the relative position change between the swing lever 25 and the detection lever 27, the push lever and the detection are detected as in the conventional configuration. There is no need to control the drive of the push-out lever at the sensor timing that changes while the disc is being transported. Without, it is possible to whether accurate detection of the disk 12.

  Further, according to the optical disc apparatus 10 of the embodiment of the present invention, the tip of the swing lever 25 to which the disc arrival switch 26 is fixed and the outer periphery of the disc 12 come into contact with each other to operate the disc arrival switch 26. And the detection lever 27 is protruded to the disk storage position Dp when the disk is inserted into the disk storage position Dp. Therefore, the disk 12 released from the restraint by the roller member 14 holds the disk while pushing the detection lever 27. Moving to the position Dp, it is possible to prevent the generation of intense collision noise. As a result, the number of parts is small, and the collision noise during disk loading can be reduced with a simple mechanism. Further, at the time of ejection, the rotation start of the roller member 14 can be controlled by the output of the disk arrival switch 26, the motor rotation time in the no-load state is shortened (the loading motor is not rotated more than necessary), and the motor noise is reduced. Can be reduced.

  As described above, according to the present invention, the base end is pivotally supported inside the main body by the support shaft and the disk arrival switch is fixed, and the base end is pivotally supported by the support shaft and the disc is stored. Since the detection lever that operates the disk arrival switch with the tip contacting the outer periphery of the disk stored in the position is provided, an error due to a delay in the detection operation, etc. caused by the cooperative operation of a plurality of members is prevented. And is useful as an optical disk device or the like.

1 is an overall perspective view of a car audio device incorporating an optical disk device according to an embodiment of the present invention. 1 is a cross-sectional view of an optical disc apparatus according to an embodiment of the present invention built in a car audio apparatus according to an embodiment of the present invention at a position II-II in FIG. FIG. 3 is an enlarged plan view of a swing lever and a detection lever provided on the inner side in the disc insertion direction of the disc storage position in the optical disc apparatus according to the embodiment of the present invention. FIG. 4 is an enlarged plan view of a swing lever and a detection lever representing a state in which there is no disc in the disc detection unit according to the embodiment of the present invention. The top view of the optical disk apparatus main body showing the state by which the disk inserted in the optical disk apparatus of embodiment of this invention was detected by the accommodation completion switch Timing chart at the time of disk loading in the optical disk apparatus according to the embodiment of the present invention The top view of the optical disk apparatus main body showing the state where the rocking lever and the detection lever started to be retracted by the disk detection by the disk arrival switch in the optical disk apparatus according to the embodiment of the present invention The top view of the optical disk apparatus main body showing the state which the accommodation of the disk was completed in the optical disk apparatus of embodiment of this invention, and the retraction | saving of the swing lever and the detection lever was completed Timing chart at the time of disc ejection in the optical disc apparatus according to the embodiment of the present invention The top view of the optical disk apparatus main body showing the state with a disk in the disk detection part in the optical disk apparatus of embodiment of this invention EE arrow view of FIG. 10 in the optical disk apparatus according to the embodiment of the present invention Plan view of a conventional optical disk device Side view of the lever of the optical disk apparatus shown in FIG. 12 of the conventional optical disk apparatus Side view of the cam gear of the optical disc apparatus shown in FIG. 12 of the conventional optical disc apparatus

Explanation of symbols

11 Disc Insertion / Removal Port 13 Body 12 Disc 14 Roller Member (Conveyance Roller)
DESCRIPTION OF SYMBOLS 10 Optical disk apparatus 15 Push lever 15a Base end 17 Support shaft 24 Support shaft 25 Rocking lever 25a Base end 25b Front end 26 Disc arrival switch 27 Detection lever 27a Base end Dp Disc storage position

Claims (2)

A base end is rotatably supported inside the main body by a main body having a disk insertion / removal opening, a conveying roller for conveying the disk between the disk insertion / removal opening and a disk storage position of the main body, and a support shaft. a detecting lever relative position is provided so as to be changed with the swing lever disk reaches the switch is fixed, with respect to the rocking lever base end to the support shaft is rotatably supported Te, and the swing lever A drive unit that drives the detection lever, and the drive unit causes the swing lever and the detection lever to swing simultaneously around the support shaft, so that the tip of the detection lever is stored in the disk storage position. An optical disc apparatus in which the disc arrival switch is pressed in contact with the outer periphery of the disc to be played . The optical disc apparatus according to claim 1,
The swing lever and the detection lever include an initial position at which the detection lever and the disk arrival switch are not in contact with the disk in the disk storage position by the drive unit, an outer periphery of the stored disk, and the An optical disk apparatus that swings between a position where a tip of a detection lever comes into contact with a position where the disk arrival switch is pressed .

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